Create public binary repository for community build products

[moraklein]

Provide a public binary repository with the community build products (#4) in tarball format. This repository must be accessible at least via web (navigation-friendly for users) and rsync (for replication to external mirrors).
A list of binary repositories should be maintained here.

[guigue]

We implemented a periodic rsync copy of the UFSM binary repository. The link to our repository: http://www.llamaobservatory.org/~acs-mirror/build/

[javarias]

The public repository is completed, the master server is available at: http://lc-ip92.inf.utfsm.cl/userContent/
We have a mirror at: http://www.llamaobservatory.org/~acs-mirror/build/
And also the public anonymous rsync service is provided at: rsync://lc-ip92.inf.utfsm.cl/builds